<?php


namespace app\builder;


class Bird
{
    public $head;

    public $wing;

    public $foot;

    public function show()
    {
        echo "头部的颜色为：{$this->head}" . PHP_EOL;
        echo "翅膀的颜色为：{$this->wing}" . PHP_EOL;
        echo "脚部的颜色为：{$this->foot}" . PHP_EOL;
    }
}